FP glitches -- Vista with Firefox browser
Vista and Firefox are the latest version. I have automatic updates and I checked the versions. I uninstalled FP and then re-installed it using the "Windows -- other" option. The first time I used Explorer it crashed but not after that.
It works correctly in Vista/Explorer but not Firefox. You Tube plays just fine.
Games play fine in Explorer but not in Firefox. In Firefox they have a white band on the side and the playing area is squished in.

You don't see the entire play space. This is a problem when you can't see what you're doing.
Thanks for your help.